This joint resolution nullifies the Environmental Protection Agency notice titled California State Motor Vehicle and Engine Pollution Control Standards; Heavy-Duty Vehicle and Engine Emission Warranty and Maintenance Provisions; Advanced Clean Trucks; Zero Emission Airport Shuttle; Zero-Emission Power Train Certification; Waiver of Preemption; Notice of Decision (88 Fed. Reg. 20688) and published on April 6, 2023. Among other elements, the notice grants the California Air Resources Board request for a waiver several of its regulations, including the Heavy-Duty Vehicle and Engine Emission Warranty Regulations and Maintenance Provisions. (Under the Clean Air Act, California may seek waivers of the preemption prohibiting states from enacting certain emission standards.)